Controlling of mass transporting property by using porous anion conducting ionomer with high alkaline durability

• Project/Area Number: 17K17721
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Device related chemistry; Structural/Functional materials
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Shoji Miyanishi 東京工業大学, 科学技術創成研究院, 特任助教 (00770413)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 電解質 / 燃料電池 / 物質移動 / イオノマー / イオン伝導 / 耐久性 / アイオノマー / 多孔性高分子 / 化学耐久性 / アニオン伝導性高分子 / 電解質膜 / アニオン伝導膜

Outline of Final Research Achievements

In this study, new porous anion conducting polymer was developed as an ionomer of membrane electrode assembly in solid alkaline fuel cell to efficiently transfer anion and fuel gas to the electrochemical reaction site. It is clarified that the developed polymer has high chemical durability owing to its all-aromatic backbone and also has high anion conductivity despite of lower water uptake by using porous structure in molecular level for ion transporting passway.

Academic Significance and Societal Importance of the Research Achievements

固体アルカリ燃料電池では、化学耐久性に優れ、化学反応サイトにイオン、燃料ガスを効率良く移動させるアニオン伝導材料の開発が重要である。本研究では、高分子骨格中に分解の起点を持たない全芳香族高分子を用いることで高い化学耐久性が得られる事、多孔性高分子の分子細孔を用いることで、効率良くイオンや燃料ガスを透過させる事が可能であるという事を明らかにし、固体アルカリ燃料電池に使用するイオノマーの、重要な材料開発指針を提供できた。

Research Products

• [Journal Article] Highly conductive mechanically robust high Mw polyfluorene anion exchange membrane for alkaline fuel cell and water electrolysis application (2020)
  • Author(s): Shoji Miyanishi, Takeo Yamaguchi
  • Journal Title: Polymer Chemistry Volume: - Issue: 23 Pages: 3812-3820
  • DOI: 10.1039/d0py00334d
  • Peer Reviewed
• [Journal Article] Highly stable membrane-electrode assembly using ether-linkage-free spirobifluorene-based aromatic polyelectrolytes for direct formate solid alkaline fuel cells (2019)
  • Author(s): Kuroki Hidenori、Miyanishi Shoji、Sakakibara Ayaka、Oshiba Yuhei、Yamaguchi Takeo
  • Journal Title: Journal of Power Sources Volume: 438 Pages: 226997-226997
  • DOI: 10.1016/j.jpowsour.2019.226997
  • Peer Reviewed
• [Journal Article] Highly durable spirobifluorene-based aromatic anion conducting polymer for a solid ionomer of alkaline fuel cells and water electrolysis cells (2019)
  • Author(s): Shoji Miyanishi, Takeo Yamaguchi
  • Journal Title: Journal of Materials Chemistry A Volume: 7 Issue: 5 Pages: 2219-2224
  • DOI: 10.1039/c8ta08400a
  • Peer Reviewed
• [Journal Article] Development of a novel durable aromatic anion exchange membrane using a thermally convertible precursor (2018)
  • Author(s): Hafis P. R. Graha, Shinji Ando Shoji Miyanishiac and Takeo Yamaguchi
  • Journal Title: Chemical Communications Volume: 54 Issue: 77 Pages: 10820-10823
  • DOI: 10.1039/c8cc05371e
  • Peer Reviewed
• [Journal Article] Analysis of the degradation mechanism of the polyarylene ether anion-exchange membrane for alkaline fuel cell and water-splitting cell applications (2017)
  • Author(s): Shoji miyanishi, Takeo yamaguchi
  • Journal Title: New Journal of Chemistry Volume: 41 Issue: 16 Pages: 8036-8044
  • DOI: 10.1039/c7nj00883j
  • Peer Reviewed
• [Presentation] Development of highly durable anion conductive membrane with all-aromatic backbone for alkaline fuel cell application (2019)
  • Author(s): Shoji Miyanishi, Takeo Yamaguchi
  • Organizer: 236th ECS meeting
  • Int'l Joint Research
• [Presentation] Highly durable membrane electrode assembly using carbon-free connected platinum iron catalyst for direct formate solid alkaline fuel cells (2019)
  • Author(s): Hidenori Kuroki,Shoji Miyanishi,Takanori Tamaki,Takeo Yamaguchi
  • Organizer: APPChE2019
  • Int'l Joint Research
• [Presentation] Highly Durable Aromatic Anion Exchange Membranes and Direct Formate Solid Alkaline Fuel Cells (2019)
  • Author(s): Takeo Yamaguchi,,Shoji Miyanishi,Hafis Pratama Rendra Graha, Hidenori Kuroki
  • Organizer: The 12th conference of the Aseanian Membrane Society
  • Int'l Joint Research
• [Presentation] Anion Exchange Membrane with Thermally Convertible Unit for Alkaline Water Electrolyzer (2019)
  • Author(s): Hafis Pratama Rendra Graha,Shoji Miyanishi, Shinji Ando,Takeo Yamaguchi
  • Organizer: 236th ECS meeting
  • Int'l Joint Research
• [Presentation] Anion exchange membrane with thermally convertible polymer system for alkaline water electrolysis application (2019)
  • Author(s): Hafis Pratama Rendra Graha,Shoji Miyanishi, Shinji Ando,Takeo Yamaguchi
  • Organizer: APPChE2019
  • Int'l Joint Research
• [Presentation] ポリフェニレンを基盤とした全芳香族主鎖骨格を有するアルカリ燃料電池用アニオン伝導膜の設計開発 (2019)
  • Author(s): 宮西 将史 山口 猛央
  • Organizer: 第68回高分子学会年次大会
• [Presentation] エーテルフリーな芳香族主鎖骨格を有するアルカリ 燃料電池用アニオン伝導高分子の開発とその特性評価 (2019)
  • Author(s): 宮西将史,Hafis Pratama Rendra Graha,山口猛央
  • Organizer: 第68回高分子討論会
• [Presentation] エーテルフリー骨格を有するアルカリ燃料電池用高耐久性アニオン伝導高分子の開発 (2019)
  • Author(s): 宮西 将史 Hafis Pratama Rendra Graha,山口猛央
  • Organizer: 2019膜シンポジウム
• [Presentation] 直接ギ酸塩溶液SAFCのための高耐久アニオン伝導細孔フィリング膜の開発 (2019)
  • Author(s): 佐々木英乃,黒木秀記,宮西将史,山口猛央
  • Organizer: 2019膜シンポジウム
• [Presentation] Development of Flexible Ether-free Aromatic Anion Exchange Membrane for Fuel Cells and Water Splitting Application (2019)
  • Author(s): Hafis Pratama Rendra Graha, 宮西将史, 安藤 慎治, 山口猛央
  • Organizer: 化学工学会第84年会
• [Presentation] カーボンアロイ触媒を用いた高分子電解質燃料電池システムの開発 (2019)
  • Author(s): 山崎健輝、大柴雄平、黒木秀記、宮西将史、山口猛央
  • Organizer: 化学工学会第84年会
• [Presentation] 固体アルカリ燃料電池用高耐久性アニオン伝導膜の設計開発 (2018)
  • Author(s): 宮西将史、山口猛央
  • Organizer: 化学工学会第50回秋季大会
• [Presentation] Highly-durable Membrane Electrode Assembly for Direct Formate Solid Alkaline Fuel Cells (2018)
  • Author(s): Hidenori Kuroki、Shoji Miyanishi、Ayaka Sakakibara、Takanori Tamaki、Sankar Sasidharan、Gopinathan M Anilkumar、Takeo Yamaguchi
  • Organizer: AiMES 2018 ECS and SMEQ Joint International Meeting
  • Int'l Joint Research
• [Presentation] Highly Durable Direct Formate Solid Alkaline Fuel Cells Using New Aromatic Anion Exchange Polymer and Carbon Free Electro-Catalysts (2018)
  • Author(s): Takeo yamaguchi、Ayaka Sakakibara、 Shoji Miyanishi、Takanori Tamaki、Sanker Sasidharan、Gopinathan M. Anilkumar
  • Organizer: 18AIChE
  • Int'l Joint Research
• [Presentation] 燃料電池および水電解の材料システム設計 (2018)
  • Author(s): 山口猛央、黒木秀記、大柴雄平、宮西将史、田巻孝敬
  • Organizer: 第28回日本MRS年次大会
• [Presentation] New Strategy for Developing Highly Conductive and Highly Durable Anion Exchange Membranes for Solid Alkaline Fuel Cells (SAFCs) (2018)
  • Author(s): Hafis Pratama Rendra Graha、Shinji Ando、Shoji Miyanishi、Takeo Yamaguchi
  • Organizer: AiMES 2018 ECS and SMEQ Joint International Meeting
  • Int'l Joint Research
• [Presentation] Development of Durable and Highly Conductive Anion Exchange Membrane Using Thermally Convertible Group (2018)
  • Author(s): Hafis Pratama Rendra Graha, 宮西将史, 安藤 慎治, 山口猛央
  • Organizer: 分離技術会年会2018
• [Presentation] Hydrogen society and systematic material design for fuel cells and electrolysis (2018)
  • Author(s): Hafis Pratama Rendra Graha、Shinji Ando、Shoji Miyanishi、Takeo Yamaguchi
  • Organizer: 1st G'L'owing Polymer Symposium in KANTO
  • Int'l Joint Research
• [Presentation] Thermally Convertible Polymer System for Preparing Highly Durable All-Aromatic Anion Exchange Membrane (2018)
  • Author(s): Hafis Pratama Rendra Graha、Shinji Ando、Shoji Miyanishi、Takeo Yamaguchi
  • Organizer: 13TH KOREA-JAPAN SYMPOSIUM ON MATERIALS AND INTERFACES
  • Int'l Joint Research
• [Presentation] Strategy for Suppressing Water Uptake in High IEC Anion Exchange Membranes with Thermally Convertible Polymer System (2018)
  • Author(s): Hafis Pratama Rendra Graha, 宮西将史, 安藤 慎治, 山口猛央
  • Organizer: 化学工学会第50回秋季大会
• [Presentation] カーボンアロイ触媒を用いた酸-アルカリハイブリッド型燃料電池の開発 (2018)
  • Author(s): 山崎健輝、大柴雄平、黒木秀記、宮西将史、山口猛央
  • Organizer: 分離技術会年会2018
• [Presentation] カーボンアロイ触媒を用いた酸-アルカリハイブリッド型燃料電池の開発電特性 (2018)
  • Author(s): 山崎健輝、大柴雄平、黒木秀記、宮西将史、山口猛央
  • Organizer: 化学工学会第50回秋季大会
• [Presentation] Acid-Alkaline Hybrid Fuel Cells Using Carbon Alloy Catalysts (2018)
  • Author(s): Kenki Yamazaki、Yuhei Oshiba、Hidenori Kuroki、Shoji Miyanishi、Takeo Yamaguchi
  • Organizer: 13TH KOREA-JAPAN SYMPOSIUM ON MATERIALS AND INTERFACES
  • Int'l Joint Research
• [Presentation] スピロ構造を主鎖に導入した高耐久性アニオン伝導膜の開発とアルカリ燃料電池への応用 (2017)
  • Author(s): 宮西将史 、黒木秀記、山口猛央
  • Organizer: 第66回高分子討論会
• [Presentation] Highly durable spirobifluorene-based aromatic anion exchange membrane for alkaline fuel cell application (2017)
  • Author(s): Shoji Miyanishi, Hidenori Kuroki, Takeo Yamaguchi
  • Organizer: 2017 International Congress on Membranes and Membrane Processes
  • Int'l Joint Research
• [Presentation] スピロビフルオレンを有する芳香族アニオン伝導高分子の開発と燃料電池への応用 (2017)
  • Author(s): 宮西将史 、黒木秀記、山口猛央
  • Organizer: 第66回高分子学会年次大会
• [Presentation] 固体アルカリ燃料電池の高耐久化へ向けた芳香族系高分子電解質膜の開発 (2017)
  • Author(s): 榊原朱夏、宮西将史、大柴雄平、黒木秀記、冨田育義、山口猛央
  • Organizer: 膜シンポジウム2017
• [Presentation] Highly Durable Aromatic Anion-Exchange Membranes for Solid Alkaline Fuel Cells (2017)
  • Author(s): Takeo Yamaguchi、Shoji Miyanishi、Hidenori Kuroki
  • Organizer: 2017 AIChE Annual Meeting
  • Int'l Joint Research
• [Book] 最近の化学工学67 進化する燃料電池・二次電池 (2019)
  • Author(s): 宮西将史, 山口猛央
  • Total Pages: 310
  • Publisher: 三恵社
  • ISBN: 9784864879965
• [Book] Nanocarbons for Energy Conversion: Supramolecular Approaches (2019)
  • Author(s): Naotoshi Nakashima (Editor)
  • Total Pages: 275
  • Publisher: Springer International Publishing
  • ISBN: 9783319929156
• [Remarks] 固体アルカリ燃料電池用電解質膜-高化学耐久性アニオン伝導高分子の設計開発
  • URL: http://www.res.titech.ac.jp/news/reserch/201907yt.html
• [Patent(Industrial Property Rights)] ポリマー、プリカーサ、ポリマーの製造方法、電解質膜、燃料電池、水電解および電解技術 (2019)
  • Inventor(s): 宮西 将史 山口 猛央
  • Industrial Property Rights Holder: 宮西 将史 山口 猛央
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2019-160703
  • Filing Date: 2019
  • Overseas
• [Patent(Industrial Property Rights)] ポリマー、プリカーサ、ポリマーの製造方法 ほか (2019)
  • Inventor(s): 宮西 将史 山口 猛央
  • Industrial Property Rights Holder: 宮西 将史 山口 猛央
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2020-033869
  • Filing Date: 2019
• [Patent(Industrial Property Rights)] 新規化合物 ほか (2019)
  • Inventor(s): 宮西将史、山口猛央
  • Industrial Property Rights Holder: 宮西将史、山口猛央
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2019-072214
  • Filing Date: 2019
• [Patent(Industrial Property Rights)] ポリマー、電解質膜、及び固体高分子形燃料電池 (2017)
  • Inventor(s): 山口猛央、宮西 将史
  • Industrial Property Rights Holder: 山口猛央、宮西 将史
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2017-032254
  • Filing Date: 2017